Don't hold down the key, just pressing it will work. If you can't get the timing down, then an easier way to get into the BIOS menu would be to turn on the computer and continuously tap it until the BIOS menu appears.I'm having an odd problem.
I bought 16GB RAM on black friday to upgrade the 4GB I currently have. Put the sticks in, everything booted up fine, RAM is shown in Windows.
Checked on CPUZ and it seem to be running slow, so thought I'd boot to BIOS and check if XMP was enabled.
I can't seem to get to BIOS any more?! I've upgraded to Windows 10 so I assumed that might be it. I've tried all sorts of workarounds I've found but nothing seems to work - holding down delete at boot just stops the PC from even getting to POST and it just cycles power constantly.
Anyone got any ideas? Motherboard is an Asus P8P67 Pro.
It shouldn't have anything to do with Windows as installing Windows doesn't modify the BIOS and Windows doesn't load until after the motherboard successfully completes POST.